Immune health is always a top priority when trying to conceive. It’s hard to focus on making babies if you’re stuck in bed with a bad cold or the flu! That’s why I’m starting this series on the science-backed, immune-boosting supplements my family and I rely on year-round to stay healthy. The best part? Many of these supplements don’t just support immunity, they also help keep our cells young and fertile, which is especially important for women over 40.
NAC (N-acetylcysteine)
Do you want to live longer, healthier, and support fertility at the same time? NAC might be exactly what you need. N-acetylcysteine is best known for its role in antioxidant production, helping the body make and replenish glutathione (the “master” antioxidant). Glutathione is critical for protecting cells from oxidative stress, which can damage or kill reproductive cells in both men and women.
But NAC isn’t just about fertility. It’s also a powerful immune support tool. Research shows NAC can:
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Inhibit viral replication
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Loosen thick mucus in the lungs
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Reduce inflammation
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Support overall respiratory health
Some researchers even suggest NAC may contribute to longevity due to its wide-ranging antioxidant and cellular support.
In terms of practical use, studies indicate that taking 600–1200 mg of oral NAC daily can significantly decrease the frequency and severity of influenza, pneumonia, and even COVID. This makes it a great supplement to include in your daily wellness routine, particularly during cold and flu season.
NAC is just one way to support your fertility, but creating a truly fertile body requires a full toolkit. In the Fertile After 40 Masterclass, I show women and their partners how to balance hormones, reduce inflammation, optimize nutrition, and address the root causes that impact conception — everything you need to give your body the best chance at a healthy pregnancy.
Take the first step toward your fertility goals and join the Masterclass today.
References:
PMID: 33177829, 30700808, 30701862, 28367412, 24835770, 35433335, 34182881, 34262324, 35113447
*As always, talk to your doctor before starting any new supplements, especially if you are trying to conceive or are on other medications.